CN211967073U - Slotting tool suitable for small-diameter integral hard alloy gun drill - Google Patents
Slotting tool suitable for small-diameter integral hard alloy gun drill Download PDFInfo
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- CN211967073U CN211967073U CN202020352141.0U CN202020352141U CN211967073U CN 211967073 U CN211967073 U CN 211967073U CN 202020352141 U CN202020352141 U CN 202020352141U CN 211967073 U CN211967073 U CN 211967073U
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Abstract
The utility model discloses a slotting tool suitable for a small-diameter integral hard alloy gun drill, which comprises a tool handle, wherein a supporting block is clamped at the front end of the tool handle, and the rear end of the tool handle is a taper shank connected with a machine tool shaft; the supporting block comprises a base body and a pressing plate, the base body is connected with the pressing plate through a locking screw, and a spring, a positioning column and a gun drill bar clamping station are arranged. And a gun drill bar to be processed is positioned and clamped on the supporting block, and the axis of the gun drill bar is coaxial with the axis of the machine tool shaft. The method is suitable for a five-axis numerical control tool grinding machine, and based on the excellent rigidity and precision of the machine tool, the reasonable grinding process is adopted, so that the machining process of the small-diameter gun drill groove is highly mechanized, the machining quality is improved, and the machining efficiency is also improved.
Description
Technical Field
The utility model relates to a metal cutting tool makes the technique, especially relates to a fluting frock suitable for whole carbide gun drill of minor diameter.
Background
Hole machining is a common metal cutting machining type in the mechanical industry, and can be divided into shallow hole machining and deep hole machining according to the length-diameter ratio (the ratio of hole depth to hole diameter), and hole machining with the length-diameter ratio being more than 10 is generally called deep hole machining.
Gun drills are a common deep hole machining tool and, as the name suggests, are initially used to machine gun-like pipe holes. Later, with the development of the mechanical industry, the deep hole machining field is generally applied gradually. The method has the characteristics of high straightness of the processed hole, good finish, smooth chip removal in the processing process and the like.
The diameter range of the head of the traditional gun drill is generally
The left and right parts, as shown in fig. 1, are composed of a head part, a shaft part and a shank part, and are welded together by brazing. The head part is made of hard alloy and plays a role in drilling, and the rod part and the handle part are made of steel and play a role in transmitting power, discharging chips and connecting a machine tool.
When the bore diameter is processed
When the long diameter is larger, the rigidity is insufficient, the torsion is easy, and the cutting requirement can not be met.
As shown in fig. 2, the gun drill head and the gun drill rod are combined into a whole and made of a whole hard alloy material, so that the problem of deep hole processing of small-diameter holes can be solved. Such a gun drill is called a small-diameter solid carbide gun drill.
Because of the structure is different, be different from traditional gun drill, the whole carbide gun drill of minor diameter need adopt new manufacturing process, specifically the difference lies in:
traditional gun drill pole portion slot and head slot are processed respectively and are formed, and the slot is processed through the roll-in to pole portion, and the diamond wheel abrasive machining slot is passed through to the head. Because the head part is shorter, the tool for grinding the groove is simpler.
The small-diameter integral hard alloy gun drill head and the rod part are the same whole, and the groove of the small-diameter integral hard alloy gun drill head and the rod part is formed by simultaneously processing a diamond grinding wheel. Because of the large length-diameter ratio, the traditional groove grinding process and tool cannot meet the requirements.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a fluting frock suitable for whole carbide gun drill of minor diameter.
The utility model aims at realizing through the following technical scheme:
the utility model discloses a fluting frock suitable for whole carbide gun drill of minor diameter, its characterized in that, including the handle of a knife, the front end clamping of handle of a knife has the supporting shoe, the rear end of handle of a knife is the taper shank with the lathe hub connection;
and a gun drill bar to be processed is positioned and clamped on the supporting block, and the axis of the gun drill bar is coaxial with the axis of the machine tool shaft.
By the foregoing the utility model provides a technical scheme can see out, the embodiment of the utility model provides a be applicable to the fluting frock of the whole carbide gun drill of minor diameter, can accurate repeated positioning, press from both sides tight reliable, be applicable to big batch processing, improved machining efficiency greatly.
Drawings
FIG. 1 is a schematic view of a conventional gun drill;
FIG. 2 is a schematic view of a small diameter solid carbide gun drill;
fig. 3 is a schematic view of an overall structure of a slotting tool suitable for a small-diameter solid carbide gun drill according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of the positioning and clamping of the supporting block in the embodiment of the present invention;
FIG. 5 is a schematic structural view of an embodiment of the present invention;
in the figure:
1. the drilling tool comprises a handle part, 2, a rod part, 3, a head part, 4, a tool handle, 5, a supporting block, 6, a diamond grinding wheel, 7, a gun drill bar to be processed, 8, a spring, 9, a locking screw, 10, a pressing plate, 11, a positioning column, 12, a base body, 13, a machine tool shaft, 14 and a grooving tool.
Detailed Description
Embodiments of the present invention will be described in further detail below. Details not described in the embodiments of the present invention belong to the prior art known to those skilled in the art.
The utility model discloses a fluting frock suitable for whole carbide gun drill of minor diameter, the concrete implementation mode of its preferred is:
the tool comprises a tool handle, wherein a supporting block is clamped at the front end of the tool handle, and a taper shank connected with a machine tool shaft is arranged at the rear end of the tool handle;
and a gun drill bar to be processed is positioned and clamped on the supporting block, and the axis of the gun drill bar is coaxial with the axis of the machine tool shaft.
The supporting block comprises a base body and a pressing plate, the base body is connected with the pressing plate through a locking screw, and a spring, a positioning column and a gun drill bar clamping station are arranged.
The machine tool is a five-axis numerical control grinding machine and is provided with a diamond grinding wheel.
The taper of the taper shank is 7: 24.
the diameter range of the processed gun drill is 1-6 mm, and the length of the processed gun drill is within 200 mm.
The utility model provides a whole carbide gun drill's of minor diameter fluting problem, and efficient, machining precision.
Compared with the prior art, the utility model, have following advantage:
the utility model discloses the whole carbide gun drill fluting frock of minor diameter of structural style is applicable to five numerical control tool grinding machines, based on good rigidity and precision of lathe itself, adopts reasonable grinding technology, can make minor diameter gun drill rake face reach within roughness Ra0.02, has the mirror surface characteristic.
The tool has the advantages of accurate repeated positioning, reliable clamping, suitability for large-batch processing and great improvement on processing efficiency;
the tool can be matched with a cutter geometric measuring instrument to detect whether the grinding size of the small-diameter gun drill reaches the standard or not, and the tool has the characteristics of high detection precision (reaching 0.005mm) and high detection efficiency.
Due to the advantages, the machining process of the small-diameter gun drill groove can be highly mechanized, the machining quality is improved, and the machining efficiency is also improved.
The specific embodiment is as follows:
as shown in fig. 3-5, includes a shank and a support block.
The taper of the taper shank connected with the machine tool is 7: 24, the device conforms to the international standard and can be matched with a machine tool with the same taper A shaft for use; the positioning surface of the supporting block and the positioning surface of the supporting block need to meet the requirement of a certain form and position tolerance and the requirement of repeated positioning precision.
The supporting block is provided with a base body, a positioning column, a pressing plate, a locking screw, a spring and other parts, and can meet the positioning and clamping requirements of the gun drill bar; the device can be matched with a tool geometry measuring instrument for use so as to adjust the position of a bar cooling hole; the dimensional tolerance and the form and position tolerance are in accordance with requirements, so that the gun drill bar and the A shaft of the machine tool meet the coaxiality requirement.
As shown in fig. 3: the slotting tool is suitable for the small-diameter integral hard alloy gun drill, and the two parts of the main body of the slotting tool are connected through the positioning surfaces and are clamped through the screws.
As shown in figure 4, a small-diameter gun drill alloy bar is placed in the supporting block positioning groove, the position of a cooling hole of the small-diameter gun drill alloy bar is adjusted through the tool geometry measuring instrument, the locking screw is screwed, the pressing plate is driven, and the pressing plate applies clamping force to the alloy bar.
As shown in fig. 4 and 5, when the tool is mounted on a five-axis numerical control tool grinding machine, a tool shank and an axis a of the machine tool pass through 7: 27 taper shank connection. And adjusting the grinding parameters to enable the diamond grinding wheel to grind the alloy bar and process the required groove.
The utility model discloses implement the whole carbide gun drill's of minor diameter fluting frock overcome the easy disconnected characteristics of long and thin alloy bar fluting, its characteristics lie in being applicable to high-accuracy five-axis numerical control tool grinding machine, repeated positioning accuracy is high, processingquality and efficient, easily promote.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. The slotting tool suitable for the small-diameter integral hard alloy gun drill is characterized by comprising a tool shank, wherein a supporting block is clamped at the front end of the tool shank, and a taper shank connected with a machine tool shaft is arranged at the rear end of the tool shank;
and a gun drill bar to be processed is positioned and clamped on the supporting block, and the axis of the gun drill bar is coaxial with the axis of the machine tool shaft.
2. The slotting tool suitable for the small-diameter integral hard alloy gun drill according to claim 1, wherein the supporting block comprises a base body and a pressing plate, the base body is connected with the pressing plate through a locking screw, and a spring, a positioning column and a gun drill bar clamping station are arranged on the base body.
3. The grooving tool for small diameter solid carbide gun drills according to claim 2, wherein the machine tool is a five-axis numerically controlled grinding machine provided with a diamond grinding wheel.
4. The grooving tool suitable for small diameter solid carbide gun drills according to claim 3, wherein the taper of the taper shank is 7: 24.
5. the slotting tool suitable for the small-diameter solid hard alloy gun drill according to any one of claims 1 to 4, wherein the diameter range of the machined gun drill is 1-6 mm, and the length of the machined gun drill is within 200 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020352141.0U CN211967073U (en) | 2020-03-19 | 2020-03-19 | Slotting tool suitable for small-diameter integral hard alloy gun drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020352141.0U CN211967073U (en) | 2020-03-19 | 2020-03-19 | Slotting tool suitable for small-diameter integral hard alloy gun drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211967073U true CN211967073U (en) | 2020-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020352141.0U Active CN211967073U (en) | 2020-03-19 | 2020-03-19 | Slotting tool suitable for small-diameter integral hard alloy gun drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211967073U (en) |
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2020
- 2020-03-19 CN CN202020352141.0U patent/CN211967073U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220617 Address after: 215000 room 604, building 3, No. 209, Zhuyuan Road, Shishan Street, high tech Zone, Suzhou, Jiangsu Patentee after: Suzhou Changshi Intelligent Equipment Manufacturing Co.,Ltd. Address before: 116113 Workshop on the east side of Ronghe Road, Dalian Wan Village, Ganjingzi District, Dalian City, Liaoning Province Patentee before: DALIAN JIRUI KNIFE TECHNOLOGY Co.,Ltd. |